silver



W. H. SILVER July 23, 1929.

LISTER Filed April 27 1925 7 Sheets-Sheet 7 Sheets-Sheet 3 W. H. SILVER LISTER Filed April 27, 1925 `uly 23, 1929.

July 23, 1929.

w. H. slLvl-:R

LI STER Filed April 27, 1925 7 Sheets-Sheet 4 VIZ-11555 ,d

w. H. SILVER July 23,1929.

LISTER Filed April 27, 1925 7 sheets-sheet 5 July 23, 1929. w, H, slLyER 1,721,716

LIsTER Filed April 27, 1925 7 Sheets-Sheet 6 fnyenfbf: TA6/H555; l lvzf m d?" v A//bm/zy.

July 23, 1929. w. H. slLvER LIsTER 7 Sheets-Sheet '7 Filed April 27, 1925 Wdh/s55; /w a. if@ ZLM, 4f/0mg.

patented .lilly 192g.

WALTER SLVER, OF MOLINE, ILLNOIS, ASSEGNOR TO DEERE & COMPANY, OF

l i MOLINE, ILLINOS. A CORPORATION OF ILLINOIS.

'Lismna Application filed April 27, 1925. SerialNo. 26,103.`

My invention relates to listers, and while it has more especially to do with those designed for planting two rows at the same time, my improvements in many respects are also applicable to listers designed for planting single rows. The object of my invention is to provide certain improvements by which the general construction of the implement as a whole may be li glitened ;by which the implement will operate more steadily and handle more easily than prior listers of this type; by which the beams and plow bodies may be connected into a unitary framework that can be raised and lowered bodily as a rigid unit, and can be tilted laterally or about a longitudinal axis independently of the .main frame for leveling purposes; by which the main supporting wheels may be permanently located with respect to the working position of tl ie plow body or bodies so that a desirable balance can be maintained.; by which the raising of the rplow bodies out of the ground will not disturb Lthe normal position of the main frame; by which. the plow bodies .may conveniently be adjusted to run level at all the depths at which the implement is capable of operating, and to improve the construction of implements of this kind in various other respects to be hereinafter pointed ont. I accomplish this' object as illustrated in the drawings and as hereinafter described. l/Vhat I regard as new is set forth in the claims. y

ln, the accompanying drawings,-

Fi 1 is a side elevation of a two-row lister embodying my improvements, with the near wheel ren'ioved, the plow bodies being shown in their operative position;

Fig. 2 is a detail, being a partial longitudinal vertical section on line 2*-2 of Fig. el,

Fig. 3 is a View similar to ig. 1, shoving the plow bodies raised to their inoperative position;

Fig. 4f. is a plan View;

5 is a detail, being a partial transverse vertical section on line 5w?) of Fig. il;

Fig. 6 is an enlarged detail illustratinf the fore-truck with one wheel removed, and the dra ft connections thereof;

Fig. is a horizontal section on line -T of Fi tl with some parts broken away;

Fig. S is a partial. ltranswerse vertical section on line 8 2 of Fig. 6;

Fig. Y) is a side `elevation with the near wheel removed, illustrating a modilied construction to adapt the implement for use in planting corn, the arrangement shown in the previous ligures being` that used on implements intended for use on wheat lands; and

Fig. 10 is aplan view of the construction shown in Fig. 9.

ln the embodiment of my invention illustrated in Fi 1 `to 8, inclusive, there is a main frame that comprises an arched axle, preferably composed of two horizontally disposed parallel bars 12, 13 spaced apart and rigidly connected together in any suitable way, as by spacing` blocks 111 and bolts 15, best shown in F 4. rFliese bars extend transversely of the .main frame, and at their ends are provided with cranks 16, the upper horizontal arms 17 of which lit between clan'iping blocks 18, 19 having concave inner faces adapted to lit around the ends of said cranks, which blocks are disposed between the end portions of the bars 12, 13, and are clamped tightly Vupon the crank ends by bolts 20, as best shownin Fig. 4. Thus the cranks are held firmly in position. The lower horizontal portions of Isaid cranks form journals upon which are rotatably mounted sleeves 21, 22, said sleeves being provided with ribs or splines 23, 24 extending longitudinally thereof. VUpon these sleeves are mounted carrying wheels 25, 26, which may be adjusted longitudinally thereof to vary the spacing between the wheels, and are held in their different positions of adjustment by collars 27, 28 litted upon said sleeves at opposite sides of the wheel hubs, and are adapted to be secured in fixed position thereon by set screws 29, 30, as shown in Fig. Il. One of said sleeves, as 22, is provided with a sprocket wheel 31 securedthereto in any suitable way, so that it will be rotated by the rotation of the wheel mounted on suoli sleeve, which in the illustrated construction is the Wheel 26. The sprocket wheel 31 drives the seed delivery mechanism, as will be hereinafter described.

rllhat port-ion of the main frame that eX- tends forward from the arched axle comprises transverselythrough the front end portions of said bars and through a spacing collar .which holds said ends a shortl distance apart.

Said bolt also serves asa means forconnecting vertically disposed links 38, 39 to the .l front ends'ofsaid bars, asshown in'Figs. 4

Y' and 6. These links serveto connect therfrontY portion of the main frame with a sleeve 40 Vthat provides a` pivotal connection between the front portion of themainframe and a fore-truck that not only supports said frame, but also serves as gaugingv means, as `will be hereinafter explained. It also serves kto transmitv the draftto the plowbeams, as will j presently be explained.

The construction of this fore-truck is bes show-n in Figs. 6, 7 and 8, from which it will be seen thatgit comprises a. transverse shaft or axle 41Vwhich at its longitudinal center is mounted in a block 42. pivotally supported to i swing about `a longitudinal axis, in a yoke 43 at the lower` end ofa bracket 44, the upper portion of which is in the formv of a sleeve having a socket toreceive the lower end of a spindle 45 on which the'sleeve 40is journaled.

The lower end of said sleeve rests on the up-V per end ofthe bracket 44, asshown in Fig. 6.

The block 42 is pivotally mounted in the yoke' V43 on a pivot bolt 46 that extends foreand aft Vthroughregistering holes in the arms of said yoke Vand through a corresponding hole l in theblock 42 nearone end thereof. Prefi 'i Y erably asimilar hole is :provided nearthe other end of said block, anda second-set of holes is provided inthe yoke 43 so that the bolt 46 may be mounted therein at different '1 heights, to provide for vertically adjusting fand .the front portionof the main frame."

the positionV of the axle 41 w-ith referenceto theV sleeve 40,'thereby effecting vertical 4adjustment ofthe normal position of saidsleeve .if The axle 41 carries two wheels 47 ,.48 mounted thereon atopposite sides `ofthe block 42, as

shown in Fig. 7, the hubs 49 of said wheels be- 'ing preferably extended.inwardly to project into dust caps 50 carried by said block at op- Y posite sidesthereof, asbest shown in Fig. 7.Y

Also caps'v 51 are preferably-provided atthe outer ends of said hubs. I prefer to'use disc :wheels `of the type shown in. Figs; 6 and 7but j they, maybe of any other suitable design. By

this. construction` it willV bev seen that thewheels .47,148 may beV turned laterally about a Vvertical axis toguide theimplem'ent, and they "may alsoswing about the bolt 46 asa longin .t-.udinal axis, since the block 42 is capable of isoswinging This enablesv the truck wheels f VfV v'to accommodate themselvesto inequalities in-v .the

'of the implement..V

ground without affecting. main `frame :The fore-truck is Valso relatively'to the rmain frame' aboutatransi verseaxis,since the links 38, 39 are pivotallyVv connectedwith airearward extension V52 of Y the Asleeve 40 a pivotybolt that passes adapted to swing parallel beams through the lower ends of saidlinks and through a suitable bearing in said extension.'V

The fore-truck is connected with` the draft means, which may either be a team or a trac-V tor, by means of an L-shaped bar 54, the lower horizontal arm 55 of which is connected with a forward extension56 of the bracket 44 by a pivot bolt 57, as shown in Fig. 6, while the end of said'spindle, as shown inFig. 6. The j loop Gl lies immediately over the'sleeve 40,

and therefore the bolt 60 serves to hold said sleeve'against vertical movement on the spindle 45. The. forward end of the bar 59 is As shown in connected with the arm 58 intermediately of y .the length thereof by a bolt 62, and the upper end of said arm 58 isattachedto a pole tongue V63 Yby straps 64 and a lbolt 65. An

evener 66 is adjustably vconnected with theV y .Y lower portion of the arm 58` by a olevis 67 f and bolt 68, said bolt beingqarranged to fit in any one of an'umber of holes 69 provided in the arm 58, as shown in Figs. 3 and 6, so that the point of attachment of the evener may be adjusted vertically. As will be here-y inafter describedthe draft transmitted to the ,plow beams through the foreftruck, and the purpose of mounting said truck so that the'spin'dle 45 may swing fore and aft about the pivot 53 is to permit the truck to accomlllll modate itself'to changes in position of the lowered, asiwill be apparent fromV a comparison of Figs. 1 and In addition the parts ofthe main frame already described, 1t also `comprises bracing Vmembers in the form of bars 70, 71, the rear ends of whi'ch'are 'secured to the vertical por tions of the cranks 17, while their forward ends converge and are secured tothe parts 32, 33, as'shown in Fig. 4. Intermediate braces 72, 73 are #also provided between the bars 7()v and 32 and the bars S71 and 33 respectively. Also, the bars 32,33 are plow .beamsV when the plows are raised or los braced by a transverse brace 74.r Back of` lthe crank axle `11`V the main Vframe comV prises two rectangular framemeinbers 75.

76 that extend rcarwardlyfrom theA oppoV Y Vsite end portions of said axle andsupport the Vseed deliveryV mechanism, as will be hereinafter described. Y' Y j i Y, Y

Y The wheeled carriage, consisting of the. main frame, thensupporting wheels 25, 26,

yandthe fore-truck, serves asa carrier fora plow frame, and providesV for its adjustmentwhile atvwork, or for its transportation after 1 position. The plow frame' comprises two f-rfl (.8, ther forward ends of Vthe plo'ws have been lifted out of operatiif'e n which are in the form of cranks having terminal spindles on which arejournaled.

sleeves 85, 86 that are iXedly-connected with the beams 77, 78 by brackets 87, 88 which are preferably. integral with said sleevesrespectively, as shown in Fig. 5. The sleeves 85, 86 are held against endwise movement on their respective spindles by collars 89 fitted in recesses in said sleeves and secured to the spindles 83, 84 by set screws 90. This provides means by which the plow beams may readily be adjusted toward or from each other along the-spindles 83, 84 to'vary the space between rows. The plow beams are of the usual form, and carry lister plow bodies 91, 92 of any approved design,

The intermediate or offset portion of the bail 82 is journaled near one end thereof, usually the Jeft hand end as viewed from the front of the implement, in a 'suitable bearing 93 carried by a bracket or hanger 94 that is secured to and depends from the bar 33 of the main frame, as best shown in Figs. 4 and 5. `The opposite end of said offset portion of the bail 82 extends through an enlarged opening 95 in a bracket or hanger 96 that is secured to and depends from the bar 32`of the main frame, as shown. in Fig. 5, so that, as viewed in Fig. 5, the right hand end portion of said bail may swing vertically substantially about the bearing 93 as an axis, the latter bearing being loose enough to permit this movement. By this construction, relatively speaking, the arched axle 11 and the bail 82 may be swung relatively to each other about a longitudinal axis, and consequently when the main frame is tilted laterally, or about a longitudinal axis, by reason of the -wheels runningon different levels, due to unevenness of the ground, the plow frame may be maintained in a level position, notwithstanding the lateral tilting of the arched axle, by moving the right hand end of said bailas viewed in Fig. 5 toward or from' the arched axle. The plows may therefore be made tofrun level, notwithstanding inequalities in the ground. For conveniently making this adjustment the right hand end of said bail is con'nectedby a link 97 with a laterally projecting arm 98 carried by a lever 99, best shown in Fig. 2. This lever is fulcrumed on the frame member 32 by means of apivot bolt 100 that is provided with a notched sector 101 adapted to cooperate with the usuallatch mechanism 102 carried by said lever -to lock the lever in its different positions of adjustment, and thereby hold the bail 82 in fixed relation to the arched axle.

The plows'are raised or lowered by' rocking the bail 82 fore and aft, which of course moves its spindles 83, 84 up er down.. This is accomplishedby means of a lever 103 fulcrumed between its endson the frame member 33 by a bolt 104. The lower end of said lever is connected by a link 105 with anl arm 10G 'liXedly secured to the offset portion of the bail 82, as shown in Fig. 5. Gbviously by moving the upper end of the lever 103 backward, the bail 82 will be rocked in a clockwise direction as viewed in Fig. 1, thereby lifting the plows. A notched sector 107 mounted. on the frame bar 33 and adapted to cooperate with latch mechanism 108 carried by the lever 103 provides means for locking said leverin its different positions of adjustment. Said lever may therefore be used either to regulate the depth of plowing, or to lift the plows to transport position. Preferably a spring 109 is provided'to aid in lifting the plows, one end of said spring being connected with the main frame in any suitable way,'as by an adjustable eye-bolt 110, while theother end of said spring is connected with the arm 10G by a link 111, as shown in Fig. 4.

c Tn order that the transverse bar 79 that connects the front ends of the beams 77, 78 may be vertically adjusted to make the plows run level fore andaft, or to tip their points up or down, said bar is provided midway of its length with a sleeve 112 which is lixedly secured thereto in any suitable way and is mounted to slide on the vertical arm 113 of a gooseneck draft connection 114 h aving a downwardly and forwardly projecting arm 115 that fits into a socket in the rearward extension 52 of the sleeve 40, as best shown in Figs. 1 and 6. A set screw 116 serves to secure the arm 115 in said socket. Both arms of the gooseneck 114 lie in the vertical plane ofthe median line of the implement, and therefore draft applied to the spindle 45 of the fore-truck is transmitted through said gooseneck to the central portion of the transverse bar 79, and through it to the plow beams equally. l `urthern1ore, by adjusting the sleeve 112 vert'cally on the arm 113, the front ends of said beams may be moved up or down to any point desired within the permitted range, and the front ends of the beams may therefore be positioned with respect to the height of the bail spindles 83, 84 so that the plow bottoms may be held level, or their points may be tipped up or down. The sleeve 112 lits on the vertical arm 113 f of the gooseneck loosely enough to permit such slight rocking of the bar 79 about a longitudinal axis is necessary -to accommodate the leveling adjustment f of the plows hereinafter described. For adjusting thesleeve 112 vertically, I provide a crank 117, the lower end of which is screw threaded, as shown at. y118 in Fig. 1, and works in an internally threaded boss 119 that projects rearwardly from the sleeve 112. The intermediate portion ofsaid crank is .rotatably supported by the gooseneek 114.

i by means of straps 121 xedly secured at opposite sides of the arm 115 of said gooseneck and projecting rearwardly therefrom.

Vcomprising complementary members having `The crank .117 extends betweenthe separated rear ends of said straps, at which point it is provided with twoV annular ribs 122.

spaced ashort distance aparttoform an annular groovef123between them,1as best shown inl/Figs; 1 and 3. A split collar 124,

ends V125thatV .passV through holesl in the 'straps 121,1` fits in said groove, and consef quently hol'ds the crank againstwendwise movement with reference `to the straps 121,YV

but permits rotation thereof. 1 Gottersvare A preferably passed through:Y the projecting ends 125 outside of the straps 121 to hold the ends of said straps together: vBythis con,- structionthe crank 117 is supported' in a d Vfixed position onthe gooseneckfandserves to holdthe front ends of the beams at any ket() point alongA .the Vvertical arm y113 of said .gooseneck at which.v they maybe set, which;

position isv not disturbedl bythe raising or lowering of therear ends of the beams. The

front endsof said beams vvmay,` however, -be` readily adjusted,'as the operator mayjdeem advisable. VVVhen' the plow bottoms are raised above'the ground for transport, the gooseneck 1121 {fis rocked about the axle Z11,

Yas illustrated in Fig. 8, but this does not materially' affect thev vertical posit-ion ofthe main frame, owing to the link connection `38,- 39 bctwcensaidframe andthe fore-truck.

Furthermore, it`will be noted that bythe construction described the 1draft is not applied- Vdirectly to the carriage orwheeled frame, bu't,as has been explained, is transmitted throughy the gooseneck to the plow frame,andthrough'the'bail 82 of said frame is communicated tothe-wheeled frame.' InV lsteering,glateral turning ofY the Awheels of i. the Vfore-truck independently of the main jfram'ejis permitted,'owing :to the pivotal mounting on the spindle lof the sleeve 4() bywhich thel frontend portion of the main frame is supportedon said truck. The front end'portion of .theplow carrying frame and `the front end portion` of themain frame may "also be Vsimultaneously adjustedvertically 'by vertically adjusting -the bracket 44e withVA Y Y 1. reference to thelaxletl by changing-the bolt Y V`tfrom'one of the holes in the yoke vL13. to the other." AsV the sleeve 40 is supported by vsaid bracket, adjustmentof the latterfvertically Y consequentlyraises or lowers said sleeve andY i i therebyfraises"or lowersfthegooseneck A1111 `tol whichthefrontvend;of the plow frame is lowers the front portion ofthe Vmain frame. By theconstruction described therefore ,the

attached, andy throughthe links 39raisesfor i front ends of the mainframe and vof the :iplow carrying frame can Vbesimultaneously -adjustedjvertically,or, if` desired, the plow A'carrying frame may be adjusted vertically independently of vertical adjustment of `the `main frame.

By-providing a wheeledmain frame with -a bail that carries the'plows andis adjustable relatively to the frame vforlevelingl purposes,

as described, I am able to connect the beams#V i' and plow bodiesto form a'unitary' frameWorl` that can berocked on the bail forraising and lowering. itbodilyas a rigid unit, andwwhich can be tilted to raise or lower one side thereof f relatively to the main frame for leveling purposes. The'y fore-truck supports the front portion of the main frame, and also serves as may -be handled more easily than'in priorvr constructions with which I am familiar. By supporting the main frame on wheels or equlvalent devices at longitudinally separatedpoints, as Ybythev wheels 25, 26, and the'foretruck, its position is not adected by adjust-A ment ofthe plow carrying frame.

,"My improved machine maybe equipped l*with any suitable meansV for delivering seed in the-ffurrows made by the'plow bodies, the

mechanism for that purpose shownin the drawings being that which 'I prefer to employ.

Such mechanism comprises apair of seed re ceptacles 126, one at each side of the machine, having the nsual lseed measuring and delivering mechanism actuated by a transverse shaft 127 which is driven from the sprocket Wheel 31 by a chain 128 and a sprocket wheel 129, the latter being loosely mounted on the shaft 127 and vbeing adapted to be connected therewith by clutch mechanism'lSO, the innermember of the clutch beingnon-rotatably secured to the shaft 127, Vwhile the other memberv thereofis secured to the sprocket Wheel 129.

An armlBl is provided arranged to'bev actu' ated-by the plo'w beam 7 8, when itis raised'to and stop the rotation of the shaft 127. Said .its transport position, in such Vmanner thatit f' will disconnect the membersr of the clutch 130.

shaftdrives theseed dispensing devices in the receptacles 126 by means of bevel gears 182,`

133 which neednot be describedjspecilically,

as their operation is well understoodA by those i Y n q n plows are 1n transport position, the delivery familiar with the art. Obviously when the of seed should be stopped, and the construc- ,y tion described provides for automatically stopping itat that time,but in some circum'- f stances farmers like to berable vto stopfthe op# Y eration of the seed dispensing mechanism at pleasure and without lifting the plows clear of the ground, and this obviouslyfmay Vbe 'readily accomplished by providing a-manual ly operatedlever, orequivalent device, adapt.-y

ed to trip the clutch mechanism which controls the operation of the shaft 127. After being delivered from the receptacles 26, the seeds drop through seed tubes 134 to spouts 185 telescopically associated with the tubes 134, and are directed by said spouts to the ground where they drop into the furrows left by sub-soilcrs 13G arranged back of the plow bodies 91, 92, as shown in Fig. 1. Pairs of covering discs 137 are provided back of the spouts 135, said discs being secured to the plow beams in any suitable way, either in fixed relation thereto or for vertical adjustment, as may be preferred. As both arrangements are well known in the art, and as my invention is not concerned with the manner in which said discs are mounted, further explanation as to them is not deemed necessary.`

1n Figs. 9 and 1() l have illustrated the leveling feature of my invention applied to a lister designed for use in corn territory. For use in planting corn, it is desirable that press wheels be provided for pressing the soil over the corn after it has been planted, and therefore instead of using the fore-truck employed on machines designed for planting cotton, such fore-truck is omitted and the rear portion of the main frame is extended rearwardly to form a support for the press wheels, which in that case constitute a rear truck that cooperates with the main wheels 25, 26 to support the main frame at longitudinally separated points, as in the construction shown in the earlier figures. The substitution of a rear truck for the fore-truck also 'makes certain other changes necessary or desirable, as will now be explained.

So far as the general construction of the main and plow frames and the mounting and adjustment of the bail are concerned, they are substantially as has been described in connection with the preceding figures, and that is true also as to the seed delivery mechanism. Corresponding parts of the machine illustrated in Figs. 9 and 10 are therefore indicated by the same reference numerals as those used in connection with the other figures. Instead, however, of connecting the front ends of the beams together by the crossbar 79, and supporting said cross-bar on the gooseneck 114, as previously described, in the construction shown in Figs. 9 and 10 the front ends of the beams are suspended from the main frame by chains 138, the lower ends of which are secured to the forward ends of said beams, while the upper portions of said chains are hooked over notched plates 139 secured to the side members of the main frame, as shown in said figures. Thisprovides a convenient means of adjusting the front ends of the beams vertically to correspond with the depth of plowing. By this means the plows may be made to run level, or their points may be tipped up' or down, as the operator may prefer.

The forward ends of the beams are provided with draft plates 140, to which clevises may be attached at different heights, and the front end of the main frame is connected with a tongue 141 by means of a pivot rod 142 mounted in arms 143 at the opposite ends of a transverse bar 144 which is secured to the front end portion of the main frame, as illustrated in Fig. 10.

The rear frame members 75, 76 support the seeding devices in the manner already described, butthey are provided with extension bars 145, 146, best shown in Fig. 10, that are rigidly secured thereto and are provided at their rear ends with a transverse bar 147 that carries bracket 148, 149 at its ends. These brackets are in the form of sleeves that form bearings for the upper ends of spindles 150, 151 provided with collars 152 on which the brackets ,148, 149 rest. The collars 152 are vertically adjustable on the spindles 150, 151, so that said spindles may be adjusted vertically with reference to the frame members 145, 146. At their lower ends said spindles are provided with bearings 153,

r154 in which are mounted axles 155, 156, re-

spectively, as shown in Fig. 10. Each of these axles carries a pair of press wheels 157., 158 so located as to press the soil over the planted seed. Preferably said wheels are provided with Scrapers 159 to prevent the accumulation of dirt or trash thereon. Owing to the pivotal mounting of the spindles 150, 151, the press wheels operate as caster wheels and automatically follow the seed dropping mechanism along the planted rows. In this machine the'adjustment for leveling is made in the same way as in that shown in the earlier figures, and the draft is transmitted to the wheeled frame in thel same way, that is to say, through the bail rather than directly. The position of the drivers seat 160 is, however, slightly different, as in the construction shown in the earlier figures it is preferably located substantially over the arched axle, whereas in the arrangement shown in Figs. 9 and 10 it is placed a short distance back of such axle, to obtain a better balancing effect, in view of the substitution of a rear truck for the fore-truck.

It should be .understood that although I have illustrated my invention as embodied in a two-row lister, many of the features of improvement. shown and described may also be incorporated in a single row implement, and the claims hereinafter made are therefore to be construed accordingly.

What I claim as my invent-ion and desire to secure by Letters Patent, is

1. A lister comprising a main frame having an arched axle, supporting wheels carried by said axle, a truck longitudinally separated from `said axle and pivotally connected with and supporting the front portion of said frame, plow carrying means, means connected feo with the-arched portion of said axle forsup-v porting said plowl carrying means to rock about `a transversev axis,- and also to rock abouta longitudinal axisl'relatively to said fraine,a'plow connected with said plow carrying means and with'said frame, and adjustable vertioally,'and for leveling,respectively,

Y by rocking of said plow carrying means about 25' Y -vertically,`a=n'dv forleveling, respectively, byV

a transverse axis, 'orabout a longitudinal. axis, and devices operable `to rock said plow carrying means. j j

,K 2. A listercomprising a main frame having an arched axle, supporting wheels carried by saidaxle, a truck longitudinally separated from said axle, means pivotally conrocking of said plow carrying meansabout a transverse axis, or about a. longitudinal axis, and devices operable to rock said plow carryingmeans. n

' A'Ylisiter comprising a main frame, front and rear-supporting wheels therefor, a shaft inteiniediatelysupportedy by the main frame torock about a transverse axis and also'about a longitudinal axis, said shaft having cranks at itsends, plow beams 'fjoiirnaled' on said ,n cranks at opposite sides of said frame,means :carried by said frame operatively connected to saidshaft to rock the same about a trans verse axis and thereby move said beams verticallyrelatively tothe frame, 'and means op? erable to rocksaid shaft relatively to the `frame about a longitudinal axis.

4- A lister comprising a main frame, front and rear supportingl wheels therefor, a plow carrying shaft intermediately supported by said frame and having cranks at its ends arranged to swing fore and aft, said shaftbeiii-g adapted' to rock aboutv a Vlong )jitudinal axis `relatively to said frame andV supporting wheels, a plow carrying Vframe"comprising beamsat opposite Vsides ofgthe'inain frame',

' journaled on said cranks,A and means connectingtl'ie forward ends of said beams'togetlier,

plows vcarried by the latter frame, means operatively connected to said sliaftlto rock the `same about a transverse axis to swing'saidV cranks fore and aft, means operatively connected to i'ock said 'shaft' aboiitta longitudi nal axisfan'd draft means lconnected with said plow carrying frame."

.5. A lister comprising a mainframe, supi porting wheels therefor, plow` carrying means supported by said frame` to rock about "a transverse axis to4 raise or lower the plow, and

to rock about allongritudinal axis'relatively to said frame tolevel the plow, means operableto rock` said plow carrying means to raise or lower tlieplow, means operableto rock said plow carrying means to level the plow, a plow beam mountedon said Vplow VVcarrying` means, a plow carried by said beam,

lower t-he plow, means operable to i'ock saidplow carrying means to level' the plow, arplow beam mounted on said plow carrying means, a plow carried'by said beaiinwground engaging means supporting the front end portions of said mainframe'and said plow beam, and means operablcrto vertically adj ust the front end portion of said beam with frame. Y

7. A'listei comprising a mainframe, siip porting wheels therefor, spaced brackets rig idly secured rto andy depending fromv said frame, Ia plow carrying shaft supported by said brackets having cranks at its ends arranged to swing fore and vaft to rais-e or lower the plows, and to rock about a longitudinal axis relatively to said frame lto level'theplows, devices operable to swing said cranks, plow beam-s at opposite sides of the. main ground engaging means supporting theV front end portions of said main frame and beams.

8. A l-ister comprising a main frame, sup- Vtically extending slot thereininwhichaporL respect to said Y'frame and connected withk Vsaid cranks, and

Vtion Vofsaidsliaft can rise and, fall in the'lati "9. A lister comprising a main fra-me, sup-V porting wheels therefor, plow carrying means supported b yv saidinain frame to rock aboutfa transverse axis tomove thevplows vertically relatively to said frame, and to rocklabout'a longitudinal axis relatively 'to said frameto' level the plows, aplow frame'supportedby said plow carrying means, plows carriedv iso the latter frame, means operable to rock said plow carrying means to raise'and lower the rear portion of said plow frame, means operable to rock said plow carrying means'about a longitudinal axis to level theplows, a foretruck connected with and supporting 'the front endA portions of said main frame andk .level the plows, a plow frame Supported by saidplow carrying means, plows carried by the latter frame.. a 'fore-truck, means supporting the front end'portionof said main frame on said fore-truck, and vertically adjustable means connecting the front end por- .i tion of said plow frame with said'fore-truck.

11.` A lister comprising a main frame, supporting wheels therefor, plow carrying means supported by said frame to rock about i a transverse axis and about a longitudinal axis relatively to said frame, a plow beam connected with'said/plow carrying means, and a. fore-truck supporting the front portion of said main frame and connected in direct draft transmitting relation with the front portion of said plow beam,l and draft means connected with said fore-truck.

' 12. A plow comprising almain frame, supporting wheels therefor, .a` plow beam .sup-

, ported at the rearby said frame for vertical adjustment, a fore'etruclr connected withthe front portion .of said frame to` swing fore and aft with respect thereto, means connecting` the front portion of said plow beam with said fore-truck, and draft means connected with ysaid fore-truck.

y 13. A plow con'iprisinga main franie, supporting wheels therefor, a plow beam supportedv at the rear by said frame for vertical.

adjustment, aforo-truck connected with the front portiono'l sai-d frame to swing fore and aft, means connecting the front portion of said plow beam with. said fore-truckn and means operable to vertically'adjust the front portion of said beam.

1li. A two-row lister comprising a main yframe, supportingwheels therefor, brackets verse axis a d about a longitudinal axis rela-y tively to the main fra-me, a fore-truck supporting the front portion of the main frame, means connecting the plow frame with the forc-truch for vertical adjustment with respect to the main frame, and draft means connected with said fore-truck;

15. A two-row lister comprising a main if, supporting wheels therefor mounted in fixed relation thereto, a plow frame, means carried bv said main franfie operable to raise y or lower the plow frame, means operable to rock said plow frame,relatively to said main frame, about a longitudinal axis, a fore-truck supporting the front portion of the main iframe and pivotally connected therewith to .sv-:in fore and aft relatively thereto, mea-ns connecting the plow frame with said forcf truck, and draft means'connectcd with the fore-truck.

16. Aplow comprising a main frame, supj porting wheels therefor, a plow.V beam supported at the rear by said frame for vertical adjustment, a fore-truck having a vertical spindle, a sleeve mounted on said spindle and having a link connection with the forward portion of said main frame, to swing fore and a'i'trelatively thereto, and means connecting the plow beam 'with said sleeve.

1'?. A plow comprising a main frame, supporting wheels therefor, al plow beam supported at the rear by said frame for vertical adjustment, a fore-truck having a vertical spindle, a sleeve mounted onsaid spindle: and. having a link` connectionfwith the forward portion of said frame, to swing fore'and aft relatively thereto, and vertically adjustable means connecting said plow beam with said sleeve.

18. A two-row lister comprising a main frame, supporting wheels therefor mounted in il'ixedrelation thereto, a plow `frame, means carried by said mainframe operable to raise or lower the plow frame, means operabe to rock said plow frame, relatively to said main frame, about a longitudinal axis, a. fore-truck supporting vthe front portion of the main frame and pivotally connected therewith to 'turn lateraly and to swing'fore and aft rei a- `tively thereto, means connecting the ,plow

`raine with said fore-truck, and draft means connected with the fore-truck.

19. A ytwo-row lister comprising a main frame, supporting wheels therefor mounted in fixed relation thereto, a plow frame, means carried by rsaid main frame operable to raise or lower the piow frame, means operable to rock said plow frame, relatively to said main frame, about a longitudinal axis, a fore-truck supporting the front portion of the main frame and pivotally connected therewith to turn laterally relatively thereto, means connecting the plow frame with said fore-truck, means for vertically adjusting the front end portion of the plow frame, and dra-ft means connected with the fore-truck.

20. A two-row lister comprising a mainy lli() fijame`gI siijpporting wheels therefor mounted e in fiXled relation thereto, aplow frame, means ,carried bysaid-inain fraineoperable to raise 'or lower the plowv rame,.n1eans operablefto n e K fixed relation thereto, a plow-carrying frame, i

rock said plow frame,` relativelyto said main c frame,., about aflongitudinalaxis,a fore-truck supportingthe Vfrontportionl 'of'. the .main

frame and 'pivotally eonneeted therewith to .sivingffoi-.e an aftelativelythereto, means connecting .the 'plow ffrainefV'ivith',k said fore-` tincl, means VAfor vertically adjusting the draftmeans connected with the: fore-truck.

:A two-row'listerioomprising'a Vmainv frame, supporting kWheels thereformounted' l' in fixed relation thereto, a Vplow frame, means carried bye'said main frame operabletoV raise or lower the ploW frame, means operable to 'rock said plowvr frame, relatively tof'sjaid main frame, about alongitudinal axis, aforo-truck.

" fsupportingfy the front portion of,V the main frame and pivota-lly connected therewith to i turn laterally and to; swing fore and aft relak io tively theretofmeans Connecting theV plow frame `'with said .fore-track, means for verti-V cally'adjustin'g theg'front endf portion of the plow frame, andfdraftmeans conneetedpvVit-h i 221A two-rowlisteneoinprising Va main frame, supporting iWheels therefor y mounted in fixed relation tliereto`,za plow-frame, means carried'by saidgnia-in :frame operable to raise Y for loweri'the plovvfframe, means operableto Y rock said plovvsframe, relativelyto saidjmam frame,ab1outja longitudinalV aXis,a fore-'truck e having a vertiealf spindle, a sleeve journaled l to Vraise orfloiver the plow frame, means'operable.rto"r0cksaid ploW frame, relativelyto Von usaid e spindle, means pifvota'lly Y connecting said isleeve With the mainframe to permit said sleeve to swing foreand vlaft A relatively thereto, means connecting saidsleeve with i said: plow-iframe, and draft meansV Aconnected with saijdfforeftraek.l

means carriedrby said main' frame operable said mainframe', about alongitudinal axis, a

foretruoklliaving avertieal'spindle, a sleeve" Journaled on said l spindle, vmeans plvotallyY connecting` said,l sleeve VWitlithe ,Inair'il frame to,

permitsaid sleeve to fsvvi'ngffore and aftV relativelyf` thereto, means connecting saidV sleeve with said plow-iframe," meansearried by the latter connecting means for lvertically adj usti the front end portion of said the front Vportionof the, pilon/frame, and

draftk means connected 'with said fore-truck.

24C.vr A. two-roivlister comprising amain frame, supporting Wheels therefor mounted in means; carriedrby said main frame operableY to raise or lower theaplows, means operable l tosaid mainframe, labout, a longitudinal axis,

va fore-truck having a vertical spindle, afsleeve p Y c v I f journaled onV said spindle, means ApivotallyV frontend portionV of the plow lframe, and

Connecting said sleeve lWith thermai'n fr-ame; to

atively; thereto, ai gooseneekeonnecting said Ato rook saidplow-carrying vframe, relatively. 1

sleeve vvith thevplovv-earrying frame, means for verticallyv adjusting'thefront end fpor-` '25. vA tWo-roiv lister comprising a'main:

tion of 1 safid `'plow'-earryingf framey on 'saidf' frame, supporting Wheels therefor. mounted in Afixed relation thereto, a plow-carrying frame, means carried by saidlinam frame operable to. raise' or loWer` theA pl'oWs,

Vmeans operable to rook said ploivearrying` Y frame, relativelyto said main frame, about a f longitudinal axis, a fore-truck having a vertical spindle,a sleeve jonrnaled onsaidspindle, means pivotally conneetingsaidsl'eeve with the main frame to permit said, sleeve to swing fore and aft relatively thereto,` a gooseneck connecting said-:sleeve with the' plow-carrying" frame,` a crank mounted on vsaid gooseneok and connected-'With the plow Carrying. frame forvertically,adjustingfthe Y fore-truck. v

same, and draftmeans Connected yWith said 261A lister co'niprisingfa;main firamegsup porting Wheels VVA,thereforfpinounted 1n, fixed frame, onel ofsaid brackets having a substanssf` gitudinal axis, saidbail'having cranks latlits j 1 ends, `a ploW-framermounted ons'aid cranks,

nal axisV relatively to the frame, ground fdQVkCes operable respectively to rock said' baill y i' about a transverse axis andabout a longitudiof the main frame andconnectedvvith said'V plow frame, and,pmeans operable-to adjust f pnlovrframerel-v ative tovsaid main frame.

95 f i relation` thereto, brackets .supported by said i CERTIFICATE 0F CORRECTION.

Patent No. l,72l,716. Granted July 23, 1929, to

WALTER H. SILVER.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 8, lines 61, 64, 7l, 73, 7S, 8l, 89 and 91, claims 24 and 25, respectively, for the compound word "plow-carrying" read "plow"; lines 63 and 80, claims 24 and 25, for "plows" read "plow-frames, and line 96, claim 26, after the word "said" insert the word "main; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent (iice.

Signed and sealed this 22nd day of October, A. D, 1929.

M. J. Moore, (Seal) Acting Commissioner of Patents. 

